| Pancreas |
| Autoimmune pancreatitis |
| Bile ducts |
| IgG4-associated cholangitis |
| Salivary gland |
| Chronic sclerosing sialadenitis (Küttner's tumor) |
| Mikulicz's disease (IgG4-related plasmacytic exocrinopathy) |
| Chest |
| Patchy ground glass, nodular, and consolidative lung opacities |
| Mediastinal fibrosis, adenopathy |
| Retroperitoneum |
| Chronic periaortitis |
| Idiopathic retroperitoneal fibrosis |
| Kidneys |
| Tubulointerstitial nephritis |
| Orbits |
| IgG4-associated pseudolymphoma |
| Inflammatory bowel disease |
| Ulcerative colitis |
